[mirror_edk2.git] / StdLib / EfiSocketLib / UseEfiSocketLib.c

/** @file\r
  Implement the connection to the EFI socket library\r
\r
  Copyright (c) 2011, Intel Corporation\r
  All rights reserved. This program and the accompanying materials\r
  are licensed and made available under the terms and conditions of the BSD License\r
  which accompanies this distribution.  The full text of the license may be found at\r
  http://opensource.org/licenses/bsd-license.php\r
\r
  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
\r
**/\r
\r
#include "Socket.h"\r
\r
\r
/**\r
  The following GUID values are only used when an application links\r
  against EfiSocketLib.  An alternative set of values exists in\r
  SocketDxe\EntryUnload.c which the SocketDxe driver uses to coexist\r
  with socket applications.\r
  \r
  Tag GUID - IPv4 in use by an application using EfiSocketLib\r
**/\r
CONST EFI_GUID mEslIp4ServiceGuid __attribute__((weak)) = {\r
  0x9c756011, 0x5d44, 0x4ee0, { 0xbc, 0xe7, 0xc3, 0x82, 0x18, 0xfe, 0x39, 0x8d }\r
};\r
\r
\r
/**\r
  Tag GUID - IPv6 in use by an application using EfiSocketLib\r
**/\r
CONST EFI_GUID mEslIp6ServiceGuid __attribute__((weak)) = {\r
  0xc51b2761, 0xc476, 0x45fe, { 0xbe, 0x61, 0xba, 0x4b, 0xcc, 0x32, 0xf2, 0x34 }\r
};\r
\r
\r
/**\r
  Tag GUID - TCPv4 in use by an application using EfiSocketLib\r
**/\r
CONST EFI_GUID mEslTcp4ServiceGuid __attribute__((weak)) = {\r
  0xffc659c2, 0x4ef2, 0x4532, { 0xb8, 0x75, 0xcd, 0x9a, 0xa4, 0x27, 0x4c, 0xde }\r
};\r
\r
\r
/**\r
  Tag GUID - TCPv6 in use by an application using EfiSocketLib\r
**/\r
CONST EFI_GUID mEslTcp6ServiceGuid __attribute__((weak)) = {\r
  0x279858a4, 0x4e9e, 0x4e53, { 0x93, 0x22, 0xf2, 0x54, 0xe0, 0x7e, 0xef, 0xd4 }\r
};\r
\r
\r
/**\r
  Tag GUID - UDPv4 in use by an application using EfiSocketLib\r
**/\r
CONST EFI_GUID mEslUdp4ServiceGuid __attribute__((weak)) = {\r
  0x44e03a55, 0x8d97, 0x4511, { 0xbf, 0xef, 0xa, 0x8b, 0xc6, 0x2c, 0x25, 0xae }\r
};\r
\r
\r
/**\r
  Tag GUID - UDPv6 in use by an application using EfiSocketLib\r
**/\r
CONST EFI_GUID mEslUdp6ServiceGuid __attribute__((weak)) = {\r
  0xaa4af677, 0x6efe, 0x477c, { 0x96, 0x68, 0xe8, 0x13, 0x9d, 0x2, 0xfd, 0x9b }\r
};\r
\r
\r
/**\r
  Free the socket resources\r
\r
  This releases the socket resources allocated by calling\r
  EslServiceGetProtocol.\r
\r
  This routine is called from the ::close routine in BsdSocketLib\r
  to release the socket resources.\r
\r
  @param [in] pSocketProtocol   Address of an ::EFI_SOCKET_PROTOCOL\r
                                structure\r
\r
  @return       Value for ::errno, zero (0) indicates success.\r
\r
 **/\r
int\r
EslServiceFreeProtocol (\r
  IN EFI_SOCKET_PROTOCOL * pSocketProtocol\r
  )\r
{\r
  int RetVal;\r
\r
  //\r
  //  Release the socket resources\r
  //\r
  EslSocketFree ( pSocketProtocol, &RetVal );\r
\r
  //\r
  //  Return the operation status\r
  //\r
  return RetVal;\r
}\r
\r
\r
/**\r
  Connect to the EFI socket library\r
\r
  This routine creates the ::ESL_SOCKET structure and returns\r
  the API (::EFI_SOCKET_PROTOCOL address) to the socket file\r
  system layer in BsdSocketLib.\r
\r
  This routine is called from the ::socket routine in BsdSocketLib\r
  to create the data structure and initialize the API for a socket.\r
  Note that this implementation is only used by socket applications\r
  that link directly to EslSocketLib.\r
\r
  @param [in] ppSocketProtocol  Address to receive the ::EFI_SOCKET_PROTOCOL\r
                                structure address\r
\r
  @return       Value for ::errno, zero (0) indicates success.\r
\r
 **/\r
int\r
EslServiceGetProtocol (\r
  IN EFI_SOCKET_PROTOCOL ** ppSocketProtocol\r
  )\r
{\r
  EFI_HANDLE ChildHandle;\r
  ESL_SOCKET * pSocket;\r
  int RetVal;\r
  EFI_STATUS Status;\r
\r
  DBG_ENTER ( );\r
\r
  //\r
  //  Assume success\r
  //\r
  RetVal = 0;\r
\r
  //\r
  //  Locate the socket protocol\r
  //\r
  ChildHandle = NULL;\r
  Status = EslSocketAllocate ( &ChildHandle,\r
                               DEBUG_SOCKET,\r
                               &pSocket );\r
  if ( !EFI_ERROR ( Status )) {\r
    *ppSocketProtocol = &pSocket->SocketProtocol;\r
  }\r
  else {\r
    //\r
    //  No resources\r
    //\r
    RetVal = ENOMEM;\r
  }\r
\r
  //\r
  //  Return the operation status\r
  //\r
  DBG_EXIT_DEC ( RetVal );\r
  return RetVal;\r
}\r
\r
\r
/**\r
  Connect to the network layer\r
\r
  This routine is the constructor for the EfiSocketLib when the\r
  library is linked directly to an application.  This routine\r
  walks the ::cEslSocketBinding table to create ::ESL_SERVICE\r
  structures, associated with the network adapters, which this\r
  routine links to the ::ESL_LAYER structure.\r
\r
  This routine is called from ::EslConstructor as a result of the\r
  constructor redirection in ::mpfnEslConstructor at the end of this\r
  file.\r
\r
  @retval EFI_SUCCESS   Successfully connected to the network layer\r
\r
 **/\r
EFI_STATUS\r
EslServiceNetworkConnect (\r
  VOID\r
  )\r
{\r
  BOOLEAN bSomethingFound;\r
  UINTN HandleCount;\r
  UINTN Index;\r
  CONST ESL_SOCKET_BINDING * pEnd;\r
  EFI_HANDLE * pHandles;\r
  CONST ESL_SOCKET_BINDING * pSocketBinding;\r
  EFI_STATUS Status;\r
\r
  DBG_ENTER ( );\r
\r
  //\r
  //  Initialize the socket layer\r
  //\r
  Status = EFI_SUCCESS;\r
  bSomethingFound = FALSE;\r
  EslServiceLoad ( gImageHandle );\r
\r
  //\r
  //  Connect the network devices\r
  //\r
  pSocketBinding = &cEslSocketBinding[0];\r
  pEnd = &pSocketBinding[ cEslSocketBindingEntries ];\r
  while ( pEnd > pSocketBinding ) {\r
    //\r
    //  Attempt to locate the network adapters\r
    //\r
    HandleCount = 0;\r
    pHandles = NULL;\r
    Status = gBS->LocateHandleBuffer ( ByProtocol,\r
                                       pSocketBinding->pNetworkBinding,\r
                                       NULL,\r
                                       &HandleCount,\r
                                       &pHandles );\r
    if ( EFI_ERROR ( Status )) {\r
      DEBUG (( DEBUG_ERROR,\r
               "ERROR with %s layer, Status: %r\r\n",\r
               pSocketBinding->pName,\r
               Status ));\r
    }\r
    else {\r
      if ( NULL != pHandles ) {\r
        //\r
        //  Attempt to connect to this network adapter\r
        //\r
        for ( Index = 0; HandleCount > Index; Index++ ) {\r
          Status = EslServiceConnect ( gImageHandle,\r
                                       pHandles[ Index ]);\r
          if ( !EFI_ERROR ( Status )) {\r
            bSomethingFound = TRUE;\r
          }\r
          else {\r
            if ( EFI_OUT_OF_RESOURCES == Status ) {\r
              //\r
              //  Pointless to continue without memory\r
              //\r
              break;\r
            }\r
          }\r
        }\r
\r
        //\r
        //  Done with the handles\r
        //\r
        gBS->FreePool ( pHandles );\r
      }\r
    }\r
\r
    //\r
    //  Set the next network protocol\r
    //\r
    pSocketBinding += 1;\r
  }\r
\r
  //\r
  //  Return the network connection status\r
  //\r
  if ( bSomethingFound ) {\r
    Status = EFI_SUCCESS;\r
  }\r
  DBG_EXIT_STATUS ( Status );\r
  return Status;\r
}\r
\r
\r
/**\r
  Disconnect from the network layer\r
\r
  Destructor for the EfiSocketLib when the library is linked\r
  directly to an application.  This routine walks the\r
  ::cEslSocketBinding table to remove the ::ESL_SERVICE\r
  structures (network connections) from the ::ESL_LAYER structure.\r
\r
  This routine is called from ::EslDestructor as a result of the\r
  destructor redirection in ::mpfnEslDestructor at the end of this\r
  file.\r
\r
  @retval EFI_SUCCESS   Successfully disconnected from the network layer\r
\r
 **/\r
EFI_STATUS\r
EslServiceNetworkDisconnect (\r
  VOID\r
  )\r
{\r
  UINTN HandleCount;\r
  UINTN Index;\r
  CONST ESL_SOCKET_BINDING * pEnd;\r
  EFI_HANDLE * pHandles;\r
  CONST ESL_SOCKET_BINDING * pSocketBinding;\r
  EFI_STATUS Status;\r
\r
  DBG_ENTER ( );\r
\r
  //\r
  //  Assume success\r
  //\r
  Status = EFI_SUCCESS;\r
\r
  //\r
  //  Disconnect the network devices\r
  //\r
  pSocketBinding = &cEslSocketBinding[0];\r
  pEnd = &pSocketBinding[ cEslSocketBindingEntries ];\r
  while ( pEnd > pSocketBinding ) {\r
    //\r
    //  Attempt to locate the network adapters\r
    //\r
    HandleCount = 0;\r
    pHandles = NULL;\r
    Status = gBS->LocateHandleBuffer ( ByProtocol,\r
                                       pSocketBinding->pNetworkBinding,\r
                                       NULL,\r
                                       &HandleCount,\r
                                       &pHandles );\r
    if (( !EFI_ERROR ( Status ))\r
      && ( NULL != pHandles )) {\r
      //\r
      //  Attempt to disconnect from this network adapter\r
      //\r
      for ( Index = 0; HandleCount > Index; Index++ ) {\r
        Status = EslServiceDisconnect ( gImageHandle,\r
                                        pHandles[ Index ]);\r
        if ( EFI_ERROR ( Status )) {\r
          break;\r
        }\r
      }\r
\r
      //\r
      //  Done with the handles\r
      //\r
      gBS->FreePool ( pHandles );\r
    }\r
\r
    //\r
    //  Set the next network protocol\r
    //\r
    pSocketBinding += 1;\r
    Status = EFI_SUCCESS;\r
  }\r
\r
  //\r
  //  Finish the disconnect operation\r
  //\r
  if ( !EFI_ERROR ( Status )) {\r
    EslServiceUnload ( );\r
  }\r
\r
  //\r
  //  Return the network connection status\r
  //\r
  DBG_EXIT_STATUS ( Status );\r
  return Status;\r
}\r
\r
\r
/**\r
  Socket layer's service binding protocol delcaration.\r
**/\r
CONST EFI_SERVICE_BINDING_PROTOCOL mEfiServiceBinding __attribute__((weak)) = {\r
  NULL,\r
  NULL\r
};\r
\r
\r
/**\r
  The following entries redirect the constructor and destructor\r
  for any socket application that links against the EfiSocketLib.\r
  Note that the SocketDxe driver uses different redirection.\r
**/\r
PFN_ESL_xSTRUCTOR mpfnEslConstructor __attribute__((weak)) = EslServiceNetworkConnect;    ///<  Constructor for EfiSocketLib\r
PFN_ESL_xSTRUCTOR mpfnEslDestructor __attribute__((weak)) = EslServiceNetworkDisconnect;  ///<  Destructor for EfiSocketLib\r
Commit	Line	Data
d7ce7006	1	/** @file\r
	2	Implement the connection to the EFI socket library\r
	3	\r
	4	Copyright (c) 2011, Intel Corporation\r
	5	All rights reserved. This program and the accompanying materials\r
	6	are licensed and made available under the terms and conditions of the BSD License\r
	7	which accompanies this distribution. The full text of the license may be found at\r
	8	http://opensource.org/licenses/bsd-license.php\r
	9	\r
	10	THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
	11	WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
	12	\r
	13	**/\r
	14	\r
eb222aea	15	#include "Socket.h"\r
d7ce7006	16	\r
d7ce7006	17	\r
a88c3163	18	/**\r
	19	The following GUID values are only used when an application links\r
	20	against EfiSocketLib. An alternative set of values exists in\r
	21	SocketDxe\EntryUnload.c which the SocketDxe driver uses to coexist\r
	22	with socket applications.\r
	23	\r
	24	Tag GUID - IPv4 in use by an application using EfiSocketLib\r
	25	**/\r
18757e70	26	CONST EFI_GUID mEslIp4ServiceGuid __attribute__((weak)) = {\r
a88c3163	27	0x9c756011, 0x5d44, 0x4ee0, { 0xbc, 0xe7, 0xc3, 0x82, 0x18, 0xfe, 0x39, 0x8d }\r
d7ce7006	28	};\r
d7ce7006	29	\r
a88c3163	30	\r
3bdf9aae	31	/**\r
	32	Tag GUID - IPv6 in use by an application using EfiSocketLib\r
	33	**/\r
18757e70	34	CONST EFI_GUID mEslIp6ServiceGuid __attribute__((weak)) = {\r
3bdf9aae	35	0xc51b2761, 0xc476, 0x45fe, { 0xbe, 0x61, 0xba, 0x4b, 0xcc, 0x32, 0xf2, 0x34 }\r
	36	};\r
	37	\r
	38	\r
a88c3163	39	/**\r
	40	Tag GUID - TCPv4 in use by an application using EfiSocketLib\r
	41	**/\r
18757e70	42	CONST EFI_GUID mEslTcp4ServiceGuid __attribute__((weak)) = {\r
d7ce7006	43	0xffc659c2, 0x4ef2, 0x4532, { 0xb8, 0x75, 0xcd, 0x9a, 0xa4, 0x27, 0x4c, 0xde }\r
	44	};\r
	45	\r
a88c3163	46	\r
3bdf9aae	47	/**\r
	48	Tag GUID - TCPv6 in use by an application using EfiSocketLib\r
	49	**/\r
18757e70	50	CONST EFI_GUID mEslTcp6ServiceGuid __attribute__((weak)) = {\r
3bdf9aae	51	0x279858a4, 0x4e9e, 0x4e53, { 0x93, 0x22, 0xf2, 0x54, 0xe0, 0x7e, 0xef, 0xd4 }\r
	52	};\r
	53	\r
	54	\r
a88c3163	55	/**\r
	56	Tag GUID - UDPv4 in use by an application using EfiSocketLib\r
	57	**/\r
18757e70	58	CONST EFI_GUID mEslUdp4ServiceGuid __attribute__((weak)) = {\r
d7ce7006	59	0x44e03a55, 0x8d97, 0x4511, { 0xbf, 0xef, 0xa, 0x8b, 0xc6, 0x2c, 0x25, 0xae }\r
	60	};\r
	61	\r
	62	\r
3bdf9aae	63	/**\r
	64	Tag GUID - UDPv6 in use by an application using EfiSocketLib\r
	65	**/\r
18757e70	66	CONST EFI_GUID mEslUdp6ServiceGuid __attribute__((weak)) = {\r
3bdf9aae	67	0xaa4af677, 0x6efe, 0x477c, { 0x96, 0x68, 0xe8, 0x13, 0x9d, 0x2, 0xfd, 0x9b }\r
	68	};\r
	69	\r
	70	\r
4652be0c	71	/**\r
	72	Free the socket resources\r
	73	\r
	74	This releases the socket resources allocated by calling\r
	75	EslServiceGetProtocol.\r
	76	\r
	77	This routine is called from the ::close routine in BsdSocketLib\r
	78	to release the socket resources.\r
	79	\r
	80	@param [in] pSocketProtocol Address of an ::EFI_SOCKET_PROTOCOL\r
	81	structure\r
	82	\r
	83	@return Value for ::errno, zero (0) indicates success.\r
	84	\r
	85	**/\r
	86	int\r
	87	EslServiceFreeProtocol (\r
	88	IN EFI_SOCKET_PROTOCOL * pSocketProtocol\r
	89	)\r
	90	{\r
	91	int RetVal;\r
	92	\r
	93	//\r
	94	// Release the socket resources\r
	95	//\r
	96	EslSocketFree ( pSocketProtocol, &RetVal );\r
	97	\r
	98	//\r
	99	// Return the operation status\r
	100	//\r
	101	return RetVal;\r
	102	}\r
	103	\r
	104	\r
d7ce7006	105	/**\r
	106	Connect to the EFI socket library\r
	107	\r
a88c3163	108	This routine creates the ::ESL_SOCKET structure and returns\r
	109	the API (::EFI_SOCKET_PROTOCOL address) to the socket file\r
	110	system layer in BsdSocketLib.\r
	111	\r
	112	This routine is called from the ::socket routine in BsdSocketLib\r
	113	to create the data structure and initialize the API for a socket.\r
	114	Note that this implementation is only used by socket applications\r
	115	that link directly to EslSocketLib.\r
	116	\r
	117	@param [in] ppSocketProtocol Address to receive the ::EFI_SOCKET_PROTOCOL\r
	118	structure address\r
	119	\r
	120	@return Value for ::errno, zero (0) indicates success.\r
d7ce7006	121	\r
d7ce7006	122	**/\r
	123	int\r
	124	EslServiceGetProtocol (\r
	125	IN EFI_SOCKET_PROTOCOL ** ppSocketProtocol\r
	126	)\r
	127	{\r
	128	EFI_HANDLE ChildHandle;\r
a88c3163	129	ESL_SOCKET * pSocket;\r
d7ce7006	130	int RetVal;\r
	131	EFI_STATUS Status;\r
	132	\r
	133	DBG_ENTER ( );\r
	134	\r
	135	//\r
	136	// Assume success\r
	137	//\r
	138	RetVal = 0;\r
	139	\r
	140	//\r
	141	// Locate the socket protocol\r
	142	//\r
	143	ChildHandle = NULL;\r
	144	Status = EslSocketAllocate ( &ChildHandle,\r
	145	DEBUG_SOCKET,\r
	146	&pSocket );\r
	147	if ( !EFI_ERROR ( Status )) {\r
	148	*ppSocketProtocol = &pSocket->SocketProtocol;\r
	149	}\r
	150	else {\r
	151	//\r
	152	// No resources\r
	153	//\r
	154	RetVal = ENOMEM;\r
	155	}\r
	156	\r
	157	//\r
	158	// Return the operation status\r
	159	//\r
	160	DBG_EXIT_DEC ( RetVal );\r
	161	return RetVal;\r
	162	}\r
	163	\r
	164	\r
	165	/**\r
	166	Connect to the network layer\r
	167	\r
a88c3163	168	This routine is the constructor for the EfiSocketLib when the\r
	169	library is linked directly to an application. This routine\r
	170	walks the ::cEslSocketBinding table to create ::ESL_SERVICE\r
	171	structures, associated with the network adapters, which this\r
	172	routine links to the ::ESL_LAYER structure.\r
	173	\r
	174	This routine is called from ::EslConstructor as a result of the\r
	175	constructor redirection in ::mpfnEslConstructor at the end of this\r
	176	file.\r
	177	\r
d7ce7006	178	@retval EFI_SUCCESS Successfully connected to the network layer\r
	179	\r
	180	**/\r
	181	EFI_STATUS\r
	182	EslServiceNetworkConnect (\r
	183	VOID\r
	184	)\r
	185	{\r
a88c3163	186	BOOLEAN bSomethingFound;\r
d7ce7006	187	UINTN HandleCount;\r
d7ce7006	188	UINTN Index;\r
a88c3163	189	CONST ESL_SOCKET_BINDING * pEnd;\r
	190	EFI_HANDLE * pHandles;\r
	191	CONST ESL_SOCKET_BINDING * pSocketBinding;\r
d7ce7006	192	EFI_STATUS Status;\r
	193	\r
	194	DBG_ENTER ( );\r
	195	\r
	196	//\r
	197	// Initialize the socket layer\r
	198	//\r
	199	Status = EFI_SUCCESS;\r
a88c3163	200	bSomethingFound = FALSE;\r
d7ce7006	201	EslServiceLoad ( gImageHandle );\r
	202	\r
	203	//\r
	204	// Connect the network devices\r
	205	//\r
a88c3163	206	pSocketBinding = &cEslSocketBinding[0];\r
a88c3163	207	pEnd = &pSocketBinding[ cEslSocketBindingEntries ];\r
d7ce7006	208	while ( pEnd > pSocketBinding ) {\r
	209	//\r
	210	// Attempt to locate the network adapters\r
	211	//\r
	212	HandleCount = 0;\r
	213	pHandles = NULL;\r
	214	Status = gBS->LocateHandleBuffer ( ByProtocol,\r
	215	pSocketBinding->pNetworkBinding,\r
	216	NULL,\r
	217	&HandleCount,\r
	218	&pHandles );\r
	219	if ( EFI_ERROR ( Status )) {\r
a88c3163	220	DEBUG (( DEBUG_ERROR,\r
	221	"ERROR with %s layer, Status: %r\r\n",\r
	222	pSocketBinding->pName,\r
	223	Status ));\r
d7ce7006	224	}\r
a88c3163	225	else {\r
	226	if ( NULL != pHandles ) {\r
	227	//\r
	228	// Attempt to connect to this network adapter\r
	229	//\r
	230	for ( Index = 0; HandleCount > Index; Index++ ) {\r
	231	Status = EslServiceConnect ( gImageHandle,\r
	232	pHandles[ Index ]);\r
441f48f5	233	if ( !EFI_ERROR ( Status )) {\r
	234	bSomethingFound = TRUE;\r
	235	}\r
	236	else {\r
	237	if ( EFI_OUT_OF_RESOURCES == Status ) {\r
	238	//\r
	239	// Pointless to continue without memory\r
	240	//\r
	241	break;\r
	242	}\r
a88c3163	243	}\r
d7ce7006	244	}\r
d7ce7006	245	\r
a88c3163	246	//\r
	247	// Done with the handles\r
	248	//\r
	249	gBS->FreePool ( pHandles );\r
	250	}\r
d7ce7006	251	}\r
	252	\r
	253	//\r
	254	// Set the next network protocol\r
	255	//\r
	256	pSocketBinding += 1;\r
	257	}\r
	258	\r
	259	//\r
	260	// Return the network connection status\r
	261	//\r
a88c3163	262	if ( bSomethingFound ) {\r
	263	Status = EFI_SUCCESS;\r
	264	}\r
d7ce7006	265	DBG_EXIT_STATUS ( Status );\r
	266	return Status;\r
	267	}\r
	268	\r
	269	\r
	270	/**\r
	271	Disconnect from the network layer\r
	272	\r
a88c3163	273	Destructor for the EfiSocketLib when the library is linked\r
	274	directly to an application. This routine walks the\r
	275	::cEslSocketBinding table to remove the ::ESL_SERVICE\r
	276	structures (network connections) from the ::ESL_LAYER structure.\r
	277	\r
	278	This routine is called from ::EslDestructor as a result of the\r
	279	destructor redirection in ::mpfnEslDestructor at the end of this\r
	280	file.\r
	281	\r
d7ce7006	282	@retval EFI_SUCCESS Successfully disconnected from the network layer\r
	283	\r
	284	**/\r
	285	EFI_STATUS\r
	286	EslServiceNetworkDisconnect (\r
	287	VOID\r
	288	)\r
	289	{\r
	290	UINTN HandleCount;\r
d7ce7006	291	UINTN Index;\r
a88c3163	292	CONST ESL_SOCKET_BINDING * pEnd;\r
	293	EFI_HANDLE * pHandles;\r
	294	CONST ESL_SOCKET_BINDING * pSocketBinding;\r
d7ce7006	295	EFI_STATUS Status;\r
	296	\r
	297	DBG_ENTER ( );\r
	298	\r
	299	//\r
	300	// Assume success\r
	301	//\r
	302	Status = EFI_SUCCESS;\r
	303	\r
	304	//\r
	305	// Disconnect the network devices\r
	306	//\r
a88c3163	307	pSocketBinding = &cEslSocketBinding[0];\r
a88c3163	308	pEnd = &pSocketBinding[ cEslSocketBindingEntries ];\r
d7ce7006	309	while ( pEnd > pSocketBinding ) {\r
	310	//\r
	311	// Attempt to locate the network adapters\r
	312	//\r
	313	HandleCount = 0;\r
	314	pHandles = NULL;\r
	315	Status = gBS->LocateHandleBuffer ( ByProtocol,\r
	316	pSocketBinding->pNetworkBinding,\r
	317	NULL,\r
	318	&HandleCount,\r
	319	&pHandles );\r
3bdf9aae	320	if (( !EFI_ERROR ( Status ))\r
3bdf9aae	321	&& ( NULL != pHandles )) {\r
d7ce7006	322	//\r
	323	// Attempt to disconnect from this network adapter\r
	324	//\r
	325	for ( Index = 0; HandleCount > Index; Index++ ) {\r
	326	Status = EslServiceDisconnect ( gImageHandle,\r
a88c3163	327	pHandles[ Index ]);\r
d7ce7006	328	if ( EFI_ERROR ( Status )) {\r
	329	break;\r
	330	}\r
	331	}\r
	332	\r
	333	//\r
	334	// Done with the handles\r
	335	//\r
	336	gBS->FreePool ( pHandles );\r
	337	}\r
	338	\r
	339	//\r
	340	// Set the next network protocol\r
	341	//\r
	342	pSocketBinding += 1;\r
3bdf9aae	343	Status = EFI_SUCCESS;\r
d7ce7006	344	}\r
	345	\r
	346	//\r
	347	// Finish the disconnect operation\r
	348	//\r
	349	if ( !EFI_ERROR ( Status )) {\r
	350	EslServiceUnload ( );\r
	351	}\r
	352	\r
	353	//\r
	354	// Return the network connection status\r
	355	//\r
	356	DBG_EXIT_STATUS ( Status );\r
	357	return Status;\r
	358	}\r
	359	\r
	360	\r
a88c3163	361	/**\r
	362	Socket layer's service binding protocol delcaration.\r
	363	**/\r
18757e70	364	CONST EFI_SERVICE_BINDING_PROTOCOL mEfiServiceBinding __attribute__((weak)) = {\r
a88c3163	365	NULL,\r
	366	NULL\r
	367	};\r
	368	\r
	369	\r
	370	/**\r
	371	The following entries redirect the constructor and destructor\r
	372	for any socket application that links against the EfiSocketLib.\r
	373	Note that the SocketDxe driver uses different redirection.\r
	374	**/\r
18757e70	375	PFN_ESL_xSTRUCTOR mpfnEslConstructor __attribute__((weak)) = EslServiceNetworkConnect; ///< Constructor for EfiSocketLib\r
18757e70	376	PFN_ESL_xSTRUCTOR mpfnEslDestructor __attribute__((weak)) = EslServiceNetworkDisconnect; ///< Destructor for EfiSocketLib\r